home *** CD-ROM | disk | FTP | other *** search
- /* $Id: pl-buffe.c,v 1.1 1995/04/18 12:29:03 jan Exp $
-
- Part of XPCE
- Designed and implemented by Anjo Anjewierden and Jan Wielemaker
- E-mail: jan@swi.psy.uva.nl
-
- Copyright (C) 1993 University of Amsterdam. All rights reserved.
- */
-
- #include "pl-incl.h"
- #include "pl-buffer.h"
-
- Buffer
- newBuffer(void)
- { Buffer b = allocHeap(sizeof(buffer));
-
- initBuffer(b);
- return b;
- }
-
-
- void
- freeBuffer(Buffer b)
- { discardBuffer(b);
- freeHeap(b, sizeof(buffer));
- }
-
-
- void
- growBuffer(Buffer b, long int minfree)
- { long sz = b->max - b->base;
- long top = b->top - b->base;
-
- sz = (sz ? ROUND((sz * 3) / 2, 512) : 512);
-
- b->base = (b->base ? realloc(b->base, sz) : malloc(sz));
- if ( !b->base )
- fatalError("Not enough memory");
-
- b->top = b->base + top;
- b->max = b->base + sz;
- }
-